| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] [be] [verb] to be | 8 |
|
| 2 | it [vb past] [be] [vb pp] to [be] | 8 |
|
| 3 | it [vb past] be [verb] to [be] | 8 |
|
| 4 | it [vb past] [be] [verb] to [be] | 8 |
|
| 5 | it [vb past] been [verb] to [be] | 7 |
|
| 6 | it had [be] [verb] to [be] | 7 |
|
| 7 | it [vb past] [been] [verb] to [be] | 7 |
|
